FN Archimer Export Format PT J TI Zeaxanthin from Porphyridium purpureum induces apoptosis in human melanoma cells expressing the oncogenic BRAF V600E mutation and sensitizes them to the BRAF inhibitor vemurafenib BT AF JUIN, Camille DE OLIVEIRA JUNIOR, Raimundo Gonsalves FLEURY, Audrey OUDINET, Chloe PYTOWSKI, Lior BERARD, Jean-Baptiste NICOLAU, Elodie THIERY, Valerie LANNELUC, Isabelle BEAUGEARD, Laureen PRUNIER, Gregoire GUEDES DA SILVA ALMEIDA, Jackson Roberto PICOT, Laurent AS 1:1;2:1,3;3:1;4:1;5:1;6:2;7:2;8:1;9:1;10:1;11:1;12:3;13:1; FF 1:;2:;3:;4:;5:;6:PDG-RBE-BRM-LPBA;7:PDG-RBE-BRM-LPBA;8:;9:;10:;11:;12:;13:; C1 Univ La Rochelle, CNRS, Littoral Environm & Soc UMR 7266, La Rochelle, France. Inst Francais Rech Exploitat Mer, Lab Physiol & Biotechnol Algues, Lab Biotechnol & Ressources Marines, Nantes, France. Fed Univ San Francisco Valley, Ctr Studies & Res Med Plants, Petrolina, PE, Brazil. C2 UNIV LA ROCHELLE, FRANCE IFREMER, FRANCE FED UNIV SAN FRANCISCO VALLEY, BRAZIL SI NANTES SE PDG-RBE-BRM-LPBA IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france copubli-int-hors-europe copubli-sud IF 1.754 TC 19 UR https://archimer.ifremer.fr/doc/00444/55595/57227.pdf LA English DT Article DE ;Cancer;Carotenoid;Melanoma;Microalgae;Phytoplankton;Zeaxanthin AB Zeaxanthin, an abundant carotenoid present in fruits, vegetables and algae was reported to exert antiproliferative activity and induce apoptosis in human uveal melanoma cells. It also inhibited uveal melanoma tumor growth and cell migration in nude mice xenograft models. Here we report that zeaxanthin purified from the rhodophyte Porphyridium purpureum (Bory) K.M.Drew & R.Ross, Porphyridiaceae, promotes apoptosis in the A2058 human melanoma cell line expressing the oncogenic BRAF V600E mutation. Zeaxanthin 40 μM (IC50) induced chromatin condensation, nuclear blebbing, hypodiploidy, accumulation of cells in sub-G1 phase, DNA internucleosomal fragmentation and activation of caspase-3. Western blot analysis revealed that zeaxanthin induced up-regulation of the pro-apoptotic factors Bim and Bid and inhibition of NF-κB transactivation. Additionally, zeaxanthin sensitized A2058 melanoma cells in vitro to the cytotoxic activity of vemurafenib, a BRAF inhibitor widely used for the clinical management of melanoma, suggesting its potential interest as dietary adjuvant increasing melanoma cells sensitivity to chemotherapy. PY 2018 PD JUN SO Revista Brasileira De Farmacognosia-brazilian Journal Of Pharmacognosy SN 0102-695X PU Soc Brasileira Farmacognosia VL 28 IS 4 UT 000439145100010 BP 457 EP 467 DI 10.1016/j.bjp.2018.05.009 ID 55595 ER EF